The blurb and quotes on the DVD cover for writer/director Neil Meschino's Mold! compare the movie to 80s cult horror classic Street Trash, which seems reasonable to me: I didn't rate Street Trash all that highly either.
Set in 1984, Mold! takes place in a top secret laboratory where a highly virulent, genetically engineered strain of mold (or mould, as we English spell it) has been developed to wipe out illegal drug crops. Unfortunately, it also proves deadly for humans, as the scientists and military top brass in the establishment discover when, one-by-one, they come into contact with the super spores.
I was expecting bad acting, I was expecting dreadful dialogue, and I was expecting unconvincing special effects, since all of these elements are par for the course in deliberately cheesy trash such as this. However, I was also expecting the whole silly affair to be a lot more fun that it actually was.
Mold! takes an awfully long time to get to the good stuff, with way too much talk and unnecessary plot development before getting gross. Unfortunately, when the messy special effects eventually happen, they're not all that special: a lot of green goop and blood gets thrown around, and there are some extremely unconvincing rubbery body parts that go splat and plop, but there's nothing that proves particularly memorable (unlike Street Trash, which at least ended with a genuine showstopper—a glorious decapitation by gas canister).
I rate Mold! a disappointing 4.5 out of 10, rounded up to 5 for the brief shot of a mouldy prosthetic schlong, which promised levels of deviancy that never materialised, and for finding a flimsy excuse to get actress Ardis Campbell down to her undies.